/*
 * 
 * 
 * 
 */
package com.cms.template.directive;

import com.cms.entity.Category;
import com.cms.entity.Site;
import com.cms.enums.CategoryStatus;
import com.cms.service.CategoryService;
import com.cms.utils.FreeMarkerUtils;
import freemarker.core.Environment;
import freemarker.template.TemplateDirectiveBody;
import freemarker.template.TemplateException;
import freemarker.template.TemplateModel;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.io.IOException;
import java.util.List;
import java.util.Map;

/**
 * 模板指令 -子栏目列表
 * 
 * 
 * 
 */
@Component
public class CategoryChildrenListDirective extends BaseDirective {

    @Autowired
    private CategoryService categoryService;

	/** "栏目ID"参数名称 */
	private static final String ID_PARAMETER_NAME = "id";

    /** "编码"参数名称 */
    private static final String CODE_PARAMETER_NAME = "code";
	
	/** "是否递归"参数名称 */
	private static final String RECURSIVE_PARAMETER_NAME = "recursive";

	/** 变量名称 */
	private static final String VARIABLE_NAME = "categorys";


    @SuppressWarnings({ "unchecked", "rawtypes" })
    public void execute(Environment env, Map params, TemplateModel[] loopVars, TemplateDirectiveBody body) throws TemplateException, IOException {
        // TODO Auto-generated method stub
        Site currentSite = getCurrentSite();
        Integer siteId = currentSite.getId();
        Integer id = FreeMarkerUtils.getParameter(ID_PARAMETER_NAME, Integer.class, params);
        String code = FreeMarkerUtils.getParameter(CODE_PARAMETER_NAME, String.class, params);
        Boolean recursive = FreeMarkerUtils.getParameter(RECURSIVE_PARAMETER_NAME, Boolean.class, params);
        Integer start = getStart(params);
        Integer count = getCount(params);
        List<Category> categorys = categoryService.findChildren(id,code, CategoryStatus.NORMAL.ordinal(),recursive != null ? recursive : false, start,count,siteId);
        setLocalVariable(VARIABLE_NAME, categorys, env, body);
    }
}